Construction of Mycobacterium tuberculosis cdd knockout and evaluation of invasion and growth in macrophages

Cytidine deaminase (MtCDA), encoded by cdd gene (Rv3315c), is the only enzyme identified in nucleotide biosynthesis pathway of Mycobacterium tuberculosis that is able to recycle cytidine and deoxycytidine. An M. tuberculosis knockout strain for cdd gene was obtained by allelic replacement. Evaluatio...

Full description

Saved in:
Bibliographic Details
Published in:Memórias do Instituto Oswaldo Cruz 2019-05, Vol.112 (11)
Main Authors: Villela, Anne Drumond, Rodrigues-Junior, Valnês S, Pinto, Antônio Frederico Michel, Falcão, Virgínia Carla de Almeida, Sánchez-Quitian, Zilpa Adriana, Eichler, Paula, Bizarro, Cristiano Valim, Basso, Luiz Augusto, Santos, Diógenes Santiago
Format: Article
Language:English
Subjects:
cdd gene
cytidine deaminase
Mycobacterium tuberculosis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cytidine deaminase (MtCDA), encoded by cdd gene (Rv3315c), is the only enzyme identified in nucleotide biosynthesis pathway of Mycobacterium tuberculosis that is able to recycle cytidine and deoxycytidine. An M. tuberculosis knockout strain for cdd gene was obtained by allelic replacement. Evaluation of mRNA expression validated cdd deletion and showed the absence of polar effect. MudPIT LC-MS/MS data indicated thymidine phosphorylase expression was decreased in knockout and complemented strains. The cdd disruption does not affect M. tuberculosis growth both in Middlebrook 7H9 and in RAW 264.7 cells, which indicates that cdd is not important for macrophage invasion and virulence.
ISSN:1678-8060